submodule __ {
    yang-version 1;
    belongs-to _ {
        prefix _;
    }

    description
        "Testing for an identifier (double underscore).
        see http://tools.ietf.org/html/rfc6020#section-6.2.1

        This is a simple test verifying submodule does not break
        handling of _ as identifier.";

    revision "2016-03-31" {
        description
            "Initial revision, for ODL Boron.";
    }

    container __ {
        list _ {
            key _;
            uses _:_;
        }
    }

}